Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Michal Rewienski"'
Autor:
MICHAŁ REWIEŃSKI
Publikováno v:
TASK Quarterly, Vol 2, Iss 4 (1998)
This study presents numerical methods of solving operator eigenproblems, focusing on their applications in electromagnetics. The discussion concentrates on the analysis of new iterative algorithms or modifications of the existing ones, which are capa
Externí odkaz:
https://doaj.org/article/47a625959371499a9d4101a800db90ae
Autor:
MICHAŁ REWIEŃSKI
Publikováno v:
TASK Quarterly, Vol 1, Iss 1 (1997)
The following article discusses the Implicitly Restarted Arnoldi Method used for solving large sparse eigenvalue problems. It presents the parallel implementation of this algorithm for a distributed memory architecture developed by Maschhoff and Sore
Externí odkaz:
https://doaj.org/article/b3c1224e0cb14a85ab5f38b2cf37fabb
Autor:
Grzegorz Fotyga, Damian Szypulski, Adam Lamecki, Piotr Sypek, Michal Rewienski, Valentin de la Rubia, Michal Mrozowski
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 70:2979-2988
Publikováno v:
Communications in Computational Physics. 22:997-1014
This paper presents a GPU-accelerated implementation of the Locally Optimal Block Preconditioned Conjugate Gradient (LOBPCG) method with an inexact nullspace filtering approach to find eigenvalues in electromagnetics analysis with higher-order FEM. T
Publikováno v:
IEEE Microwave and Wireless Components Letters. 28:7-9
This letter proposes a stabilized locally optimal block preconditioned conjugate gradient method for computing selected eigenvalues for complex symmetric generalized non-Hermitian eigenproblems. Effectiveness of the presented approach is demonstrated
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 64:1681-1693
This paper attempts to develop a new automated multipoint model-order reduction (MOR) technique, based on matching moments of the system input–output function, which would be suited for fast and accurate computation of scattering parameters for ele
Publikováno v:
IEEE Microwave and Wireless Components Letters. 25:766-768
This letter proposes a novel projection technique for accelerating Finite Element Method simulations. The algorithm is based on the Second-order Arnoldi Method for Passive Order Reduction (SAPOR). It involves generation of two projection bases and th
Publikováno v:
IEEE Microwave and Wireless Components Letters. 25:561-563
This letter proposes a new scheme for reduced-order finite-element modeling of electromagnetic structures with nonlinear, dispersive surface boundary conditions, which optimally exploits the numerically stable and efficient MOR framework for second-o
Publikováno v:
IEEE Microwave and Wireless Components Letters. 25:208-210
This letter proposes a novel a-posteriori error estimator suitable for the reduced order modeling of microwave circuits. Unlike the existing error estimators based on impedance function residuals, the new one exploits the residual error associated wi
Publikováno v:
Computer Physics Communications. 184:2127-2135
This paper proposes a technique, based on the Inexact Shift–Invert Lanczos (ISIL) method with Inexact Jacobi Orthogonal Component Correction (IJOCC) refinement, and a preconditioned conjugate-gradient (PCG) linear solver with multilevel preconditio